Block structure for an internal combustion engine

Details Block structure for an internal combustion engine Block structure for an internal combustion engine

1995-12-18

1997-09-09

Okonsky, David A

Internal-combustion engines

Frame construction

Horizontal cylinder

F02B 7518

Patent

active

056645384

ABSTRACT:
An internal combustion engine 20 comprises a cylinder block 22, a cylinder head 24, and a plurality of fasteners 47 holding the head onto the block. The block comprises a single structure having walls 34 defining four cylinder bores 36 arranged in a line for receiving pistons, longitudinal support sections 60, 61 extending along the block one on either side of the line of bores and transverse support sections 74 joined to the longitudinal support sections and extending substantially tangentially to the bores. The fasteners 47 are arranged to engage with the block 22 such that a substantial part of the load exerted on the top of the walls 36 of the bores is transmitted to the fasteners via the support sections. This prevents forces from being transmitted radially into the cylinder walls 36 and thereby reduces bore distortion.

REFERENCES:
patent: 3183794 (1965-05-01), Hind
patent: 4587933 (1986-05-01), Shaw
patent: 4712517 (1987-12-01), Anno et al.
patent: 5190003 (1993-03-01), Voigt
patent: 5253615 (1993-10-01), Heater et al.
patent: 5501189 (1996-03-01), Van Bezeij

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